There aren’t many consolations to a rainy day– cosy couch time, soothing sounds of drops on the roof, and possibly a rainbow or a puddle-splash afterwards. But you can add yet another by attaching a water tank to capture a bit of that downpour: it will shrink your environmental footprint by lessening your demand on mains water and the volume of stormwater runoff into rivers and oceans, and can also cut your water bill in the long term.
Rainwater tanks are no longer just huge, round and uninviting; they can be found in all shapes and sizes that can make efficient use of minimal or tricky urban spaces.
Water for outdoor or indoor usage?
Probably the most important issue to consider before you acquire and install a rainwater tank is how you want to use the water.
Making use of the water outdoors– for watering the garden and washing the car, as an example– is the most convenient way to start, as you possibly just need the supplier to install the water tank, as opposed to a licensed plumber. And it will immediately cut your utilization of mains water.
Save lots more by sending the water to your toilet, washing machine or hot water system, but you’ll need to have a licensed plumber to connect the tank to your mains supply.
What size rainwater tank do I really need?
click through the next document capacity you choose will hinge on the size and shape of your household and garden. Round, squat tanks fit very well under a deck, while slimline tanks are good for narrow spaces. An underfloor tank or bladder storage system is a good out-of-sight space saver, however, is more expensive.
Your roof area and the annual rainfall in your region will also have to be considered. To help determine the size and shape that’s best for you, sellers often provide calculators on their web pages, or your water authority may be able to help.
What else do I need to recognize before getting a rain water tank?
Water tanks generally are available in the following materials:
Metal tanks are crafted from corrugated or flat rolled metal, which might be galvanised or coated. They often come with a plastic inner lining (Aquaplate) that will increase the quality of life of the tank and safeguard the water quality.
Polyethylene (plastic) tanks are prominent as they are comparatively cheap and durable. Because rust isn’t a problem, they are a great option for people living near the coast. Other synthetic materials, such as PVC and geotextile, are applied for bladder storage. Bladders work for water storage below a deck or floor; while their material is tough, it’s not intended for outdoor installation.
Fibreglass tanks are rust and chemical-resistant and created to withstand extreme temps. They’re not the cheapest option, and more suitable for above-ground installation, while all other kinds can also be installed below ground.
Concrete tanks, more often used for agricultural and industrial purposes, won’t rust, burn, melt or blow away. They can be bought ready-made, or customized onsite.
Ask your local area council and water supplier which rules and regulations are applicable in your area. You may need to provide a development or building application, and there may be regulations around drinking rainwater or mosquito breeding prevention, in addition to restrictions on the tank’s placement, colour, height and labelling or noise regulations for a pump.
Are you refurbishing, building new or retrofitting?
If you are restoring or building, instead of retrofitting, you may have to incorporate energy and water-efficient functions in your plans to abide by new legislative requirements.
When securing quotes, inquire if there are any further costs for delivery and installation; extra products (such as pipes, fittings and taps); alternative extras (such as a first-flush or backflow-prevention device); a pump (unless you can employ gravity for water pressure); and a stand (unless you would like to put it on the ground or below it, by which case you’ll need to consider the cost of special ground prep or excavation).
If you would like to connect the tank to your mains supply of water, think about the cost of a licensed plumber, and charges for any supplementary work that needs to be done to your roof and/or guttering.
Can you obtain a water tank rebate?
Get in touch with your local water or government authority to see if you’re entitled to a cash grant or bill reduction– the answer may hinge on the size of the tank and whether it’s connected to a toilet and/or washing machine.
Rainwater tanks can range from around $700 to $2000, starting from a small, freestanding model without pump or extras, to large, custom-built models. Costs vary basing on the size, material, finish and strength of the tank.